#banner {
    background: url('../pic/product/banner.jpg') center;
    height: 840px;
    color: #fff;
    text-shadow: 0 0 10px #333;
}

#banner h2 {
    font-size: 52px;
    margin-bottom: 30px;
}

#banner p {
    font-size: 28px;
}

#banner .content {
    padding-top: 150px;
}

#banner li {
    margin-right: 60px;
    margin-bottom: 40px;
}

#banner ul {
    width: 548px;
    margin-top: 90px;
}

.pd {
    padding: 70px 0;
}

.h2 {
    font-size: 30px;
    color: #333;
    margin-bottom: 10px;
}

.h4 {
    font-size: 14px;
    color: #666;
    margin-top: 20px;
}

#item1 li {
    float: left;
    width: 300px;
    padding-top: 40px;
}

#item1 p {
    height: 30px;
    line-height: 30px;
    margin-top: 5px;
    font-size: 16px;
    color: #666;
}

#item2 {
    background-color: #edf3f2;
}

#item2 .bottom {
    padding: 20px 0;
    height: 556px;
    background: url('../pic/product/i2.png') center no-repeat;
}

#item2 ul {
    width: 400px;
}

#item2 .left {
    width: 300px;
    line-height: 32px;
    margin-right: 20px;
}

#item2 li {
    margin-bottom: 160px;
}

#item2 .title {
    color: #666;
    font-size: 18px;
    font-weight: 600;
}

#item2 p {
    font-size: 14px;
    line-height: 16px;
}

#item2 .right {
    text-align: left;
}

#item3 ul {
    width: 790px;
    margin: 40px auto;
}

#item3 li {
    float: left;
    width: 106px;
    height: 34px;
    border: solid 1px #dcdcdc;
    border-radius: 16px;
    line-height: 34px;
    margin: 0 25px;
    cursor: pointer;
    font-size: 16px;
}

#item3 .li-active {
    background-color: #2b92f9;
    color: #fff;
}

#item3 .mac {
    width: 900px;
    height: 710px;
    background: url('../pic/product/item3.png') no-repeat;
    margin: 0 auto;
    overflow: hidden;
}

#item3 .ppt {
    margin-top: 46px;
    margin-left: 42px;
    *margin-left: 0;
    /*用于兼容IE7*/
    width: 816px;
    height: 462px;
    background-image: url('../pic/product/show1.gif');
}

#item4 {
    height: 450px;
    background: url('../pic/product/i4.jpg') center;
    color: #fff;
}

#item4 h2 {
    font-size: 48px;
    margin-bottom: 10px;
}

#item4 p {
    font-size: 14px;
    margin-bottom: 50px;
}

#item4 a {
    display: block;
    width: 192px;
    height: 52px;
    line-height: 52px;
    border: 1px solid #fff;
    border-radius: 8px;
    font-size: 18px;
    color: #fff;
    position: absolute;
    z-index: 10;
    left: 500px;
    top: 350px;
}

#item4 .content {
    height: 100%;
}

#item5 .bottom {
    padding-top: 40px;
}

#item5 .left {
    width: 800px;
}

#item5 .right {
    width: 300px;
    padding-left: 80px;
}

#item5 h3 {
    font-weight: bold;
    font-size: 18px;
    margin-bottom: 20px;
}

#item5 li {
    font-size: 16px;
    color: #666;
    line-height: 20px;
    margin-bottom: 30px;
}

#item5 a {
    display: block;
    width: 154px;
    height: 44px;
    background-image: url('../pic/product/i5-2.png');
    line-height: 44px;
    font-size: 18px;
    margin-top: 60px;
}

#item6 {
    background-color: #edf3f2;
}

#item6 p {
    margin: 20px 0 10px;
    font-size: 14px;
    line-height: 20px;
    color: #333;
}

#item6 li {
    width: 400px;
    float: left;
    padding-top: 40px;
}

#item6 .tip {
    width: 380px;
    position: absolute;
    height: 40px;
    bottom: 3px;
    left: 10px;
    background-color: rgba(0, 0, 0, 0.4);
    line-height: 40px;
    font-size: 18px;
    color: #fff;
}